def arg_check()

in aws-iot-events-for-beginners/main.py [0:0]

• 39 lines of code
• 5 McCabe index (conditional complexity)

def arg_check():
    """
    argument check
    """

    logging.debug("start: arg_check")
    parser = argparse.ArgumentParser()
    parser.add_argument("--device_name", required=True,
                        help="[Must], input config file. include path")
    parser.add_argument("--endpoint", required=True,
                        help="[Must], AWS IoT endpoint URI")
    parser.add_argument("--root_ca", required=False,
                        help="root ca file name with path")
    parser.add_argument("--cert", required=False,
                        help="device cert file name with path")
    parser.add_argument("--private", required=False,
                        help="private cert key file name with path")
    parser.add_argument('--verbosity', choices=[x.name for x in io.LogLevel],
                        default=io.LogLevel.NoLogs.name, help='Logging level')

    args = parser.parse_args()

    log_level = getattr(io.LogLevel, args.verbosity, "error")
    io.init_logging(log_level, 'stderr')
    loglevel_map = [
        logging.INFO, logging.INFO, logging.INFO,
        logging.INFO, logging.INFO, logging.DEBUG,
        logging.DEBUG]
    logger.setLevel(loglevel_map[log_level])
    logging.basicConfig()

    cert_list = find_certs_file()
    if args.root_ca is not None:
        cert_list[0] = args.root_ca
    if args.private is not None:
        cert_list[1] = args.private
    if args.cert is not None:
        cert_list[2] = args.cert

    logging.debug(cert_list)
    file_exist_check(cert_list)

    init_dict = {
        "device_name": args.device_name,
        "endpoint": args.endpoint,
        "certs": cert_list
    }
    return init_dict